Open to opportunities

Việt Nguyễn

@zengratul

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Full Stack Developer specializing in mobile, cloud, and blockchain.

Vietnam

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What I'm looking for

I seek remote or Ho Chi Minh City roles where I can lead technical solutions, build scalable full‑stack systems, mentor teams, and drive cloud, mobile and blockchain projects with focus on security and cost efficiency.

I am a pragmatic full stack developer with extensive experience building web, mobile and cloud solutions for startups and enterprise clients. I deliver end-to-end systems from frontend interfaces to backend services and deployment pipelines.

I have led and contributed to diverse international projects — fintech, DeFi staking, MMO play-to-earn, EdTech, IoT, and e‑commerce — using Next.js, Node/Nest, React Native, Flutter, Prisma and cloud platforms like AWS and Azure. I build secure, scalable systems and automate CI/CD and infrastructure.

My blockchain work includes creating ERC20 tokens, authoring and deploying smart contracts with Hardhat and Ethers.js, and integrating DApp wallet connectivity and subgraphs. I also bring strong mobile delivery experience: React Native, Flutter, Fastlane, Firebase and App Store/Play Store deployment.

I emphasize code quality, testing, performance and security: linting, commit hooks, unit tests, secure auth (JWT/Passport/Cognito), ORM/parameterized queries, caching strategies, monitoring and cost optimization. I solve production issues, optimize costs, and help teams deliver robust products quickly.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Minttown.jp

Oct 2024 - Present (11 months)

Developed MMO play-to-earn and DeFi staking platforms enabling crypto rewards and seamless withdrawals; built staking smart contracts, wallet integrations and secure authentication flows.

Next.js TypeScript Prisma Hardhat AWS Serverless Tailwind WalletConnect CI CD

Full Stack Developer

IT-Artists.ch

Feb 2023 - Oct 2024 (1 year 8 months)

Delivered multiple client projects including a Swiss voting app and e-commerce sites; migrated legacy PHP to Node.js and maintained complex maintenance projects.

Node NestJS Next.js Azure Kubernetes Terraform PostgreSQL React Native CI CD

Full Stack Developer

Topica

May 2021 - Feb 2023 (1 year 9 months)

Developed an EdTech ecosystem including Edumall and Topica Native, scaling course ecommerce and e-learning platforms with cloud-native infrastructure.

Next.js Kubernetes Google Cloud GraphQL PostgreSQL Terraform CI CD Material UI

Full Stack Developer

Orient Software

Apr 2019 - May 2021 (2 years 1 month)

Built React Native mobile apps and backend services for IoT and home & garden clients, contributing to Karcher projects and mobile feature development.

React Native React Firebase Fastlane Jest CI CD IoT

Full Stack Developer

FPT Telecom

Oct 2016 - Apr 2019 (2 years 6 months)

Developed mobile and desktop apps (React Native, Electron) and backend services for file sharing and advertising platforms, optimizing uploads and performance.